Adjustment means for kiln roller supports



Dec. 7, 1943. L. s. PETERSEN E 2,336,417

ADJUSTMENT MEANS FOR KILN ROLLER SUPPORTS Filed June 19, 1942 23 3 A 6aa do? fiqs' fyg ek ATTORNEY;

Patented Dec. 7, 1943 ADJUSTMENT MEANS FOR KILN ROLLER SUPPORTS LouisSteffen Petersen, Forest Hills, N. Y., as-

signor to F. L. Smidth & 00., New York, N. Y., a corporation of NewJersey Application June 19, 1942, Serial No. 447,659

Claims.

This invention relates to supporting structures for rotary kilns andlike apparatus, such structures ordinarily including a base which maytake the form of a frame made, for example, of girders and beams, androller supports mounted on the base. More particularly, the invention isconcerned with a novel means for adjusting the roller supports relativetothe base, which are simpler and cheaper to fabricate than theadjusting devices previously used and can be installed more easily andat less expense.

In order to understand the invention reference may be had to theaccompanying drawing in which Fig. 1 is a view of the supportingstructure in side elevation with a portion of the kiln shown intransverse section;

Fig. 2 is an end view of the structure;

Fig. 3 is a view showing a part of the supporting structure in sectionand illustrating the manner of mounting the adjusting device; and

Fig. 4 is a plan view of the features illustrated in Fig. 3.

The supporting structure illustrated in the drawing is of a formsuitable for use with a rotary kiln and it includes a base generallydesignated l 6, which may be made of girders and beams and is anchoredby bolts l l to a foundation l2 ordinarily of concrete. The base shownincludes a pair of girders l3 which extend transversely of the axis ofthe kiln and have upper and lower flanges lBa connected by a web I311.

The kiln I4 is provided with the usual circumferential tire I 5 mountedto run on rollers it, one on each side of the kiln axis. Each roller hasa shaft l'l journalled in bearings IS in a pair of supports l9 mountedon the top flanges Ilia of girders l3 and held in adjusted positionthereon by bolts passing through bores in the ends of supports l9 andthrough slots in the flanges. The web of each girder is cut away at 2|to afford access to the ends of the bolts passing through the flanges onthe inner sides of the Webs l3b.

In the construction shown, the kiln is mounted at an incline andprovision is made for preventing the kiln from slipping endwise. Forthis purpose, the frame includes a girder 22 extending lengthwise of theaxis of the kiln and supported on beams 23' on the foundation. Supportsfor thrust rollers are mounted on the upper flange 22a of the girder,these supports including bases 24 in each of which a roller 25 ismounted for rotation on a vertical axis. Rollers 25 have the usualfrusto-conical faces engaging correspondingly formed lateral surfaces ontire l5 and bases 24 are secured to flange 22a by bolts 25 which extendthrough slots in the flange.

The supports for rollers l 6 are adjustable with reference to the baseand, for this purpose, an adjustment device is mounted on each beam l3on the side of each roller support base l9 away from the kiln axis. Eachsuch device includes a block 2'! which rests on top of the upper flangel3a of a girder l3 and the block has vertical tubular portions 28 oneither side at one end. The tubular portions extend downwardly into andpart way through openings 29 in the top flange of the girder on eitherside of the girder web and the tubular portions may be advantageouslymade of lengths of heavy seamless tubing welded to the opposite faces ofthe block.

Each block 21 is secured in place on the girder by a pair of bolts 36extending through the tubular portions 23 and the top flange l3a of thegirder. Each bolt has a head 3| bearing against the upper end of thetube and its lower end is threaded into a block 32 welded against theunder surface of flange l3a in alignment with the opening 29therethrough. Since the tubes do not project downwardly below the undersurface of flange l3a, tightening of the bolts insures that the block 21will be clamped firmly in place on the girder. Each block 21 is formedwith a bore extending therethrough parallel to the upper surface of thetop flange of the girder and the bore is internally threaded.

A screw 33 is threaded through the bore in each block 21 and the screwhas a head 34 at its outer end. The inner end 35 of the screw bearsagainst a suitable surface on the roller support base I9. With thisarrangement, on loosening the bolts 20 holding the supports for a rollerin place, the screws 34 can be turned in one direction or the other forthe purpose of either moving the roller [6 inwardly to raise the kiln orpermitting the supports to be moved outwardly by the weight of the kilnbearing against the roller.

In the construction shown, the thrust roller supports are also providedwith adjusting devices mounted on the top flange 22a of girder 22 andheld in place by bolts 36 passing through tubular portions 31 on theblocks and flange 22a of the girder and threaded into blocks 38 weldedto the under surface of the flange. As before, the devices are providedwith screws 39 threaded through the blocks and bearing against thesupports 24.

As will be apparent, the new adjusting devices for the roller supportscan be made of standard stock and do not require expensive machiningoperations, so that they are cheaper to make than prior devices whichinclude castings. The means in the form of the tubes and bolts forsecuring the devices to the base are highly effective for the purpose inthat they operate with a clamping action and their use does not requireany alterations in the frame other than the formation of the openingsthrough the top flanges of the girders. The adjusting device can,therefore, be easily and quickly installed.

I claim:

1. In a supporting structure for rotary kilns and the like, suchstructure including a base and a roller support mounted on the base,means for adjusting the roller support along the base, comprising amember mounted on top of the base and adapted to carry a screw threadedtherethrough and engaging the roller support for adjustment thereof,tubular elements on the member extending into openings through the topof the base, and means extending through said elements and engaging thebase for holding the member and elements in place on the base.

2. In a supporting structure for rotary kilns and the like, suchstructure including a frame containing a girder having a top flange, anda roller support mounted on the girder, means for adjusting the rollersupport along the girder, comprising a member mounted on top of theflange and adapted to carry a screw threaded through the member andengaging the roller support for adjustment thereof, tubular elements onthe member extending into openings through the flange, and meansextending through said elements and engaging the girder for securing theelements and member to the girder.

3. In a supporting structure for rotary kilns and the like, suchstructure including a frame containing a girder having a top flange, anda roller support mounted on the girder, means for adjusting the rollersupport along the girder, comprising a block mounted on the flange andadapted to carry a screw threaded through the block and engaging theroller support for adjustment thereof, tubes secured to opposite facesof the block and extending into openings through the flange, and meansextending through the tubes and engaging the girder for securing thetubes and block to the girder.

4. In a supporting structure for rotary kilns and the like, saidstructure including a. base containing a girder having a top flange anda web, and a roller support mounted on the top flange of the girder,means for adjusting the roller support along the girder, comprising ablock mounted on top of the flange and having tubular portions extendingpart Way through openings through the flange on either side of the Web,and means extending through said tubular portions and engaging thegirder for holding said block to the girder.

5. In a supporting structure for rotary kilns and the like, saidstructure including a base containing a girder having a, top flange anda web, and a roller support mounted on the top flange of the girder,means for adjusting the roller support along the girder, comprising amain block mounted on top of the flange and provided with tubularportions at opposite sides thereof having ends extending part waythrough openings through the flange on either side of the web, boltsextending through the tubular portions and the openings, and blocks onthe under sur face of the flange into which the bolts are threaded, thebolts clamping the main block in place on the flange.

LOUIS STEFFEN PETERSEN.

